Phys.org news tagged with:chemical signatureshttp://phys.org/
en-usPhys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.In a cosmic 'call to arms,' astronomer proposes new deep-space telescope to scan the sky for signs of lifeAstronomers usually spend their time contemplating the heavens above. But one group of dedicated stargazers has challenged the community to look instead to the future, envisioning the tools for generating more celestial discoveries.http://phys.org/news/2015-07-cosmic-arms-astronomer-deep-space-telescope.html
Space Exploration Tue, 07 Jul 2015 07:40:01 EDTnews355471603Researchers make ultrasensitive conductivity measurementsResearchers at Rice University have discovered a new way to make ultrasensitive conductivity measurements at optical frequencies on high-speed nanoscale electronic components.http://phys.org/news/2015-06-ultrasensitive.html
Nanophysics Wed, 10 Jun 2015 09:45:19 EDTnews353148306Isotope tracking: Chemical tags in ear bones track Alaska's Bristol Bay salmonSalmon carry a strontium chemical signature in their "ear bones" that lets scientists identify specific streams where the fish hatched and lived before they were caught at sea. The new tool may help pinpoint critical habitats for fish threatened by climate change, industrial development and overfishing.http://phys.org/news/2015-05-chemical-tags-ear-bones-track.html
Ecology Fri, 15 May 2015 14:00:02 EDTnews350889201Best of Last Week – New type of planet found, workload sharing robot limbs and clues about where all the antimatter went(Phys.org) —It's been a busy week for space scientists—a team of astronomers discovered the first Thorne-Zytkow object—it's a weird type of hybrid between a red supergiant and a neutron star that looks like a regular red supergiant, except it has a different type of chemical signature, giving it away. Another team of astronomers found a new type of planet: The 'mega-Earth'. It's rocky and weighs 17 times as much as our own planet. And yet another team has found that surprisingly strong magnetic fields challenge black holes' pull. Black holes surveyed had magnetic strength equal to their gravitational pull, the first such direct evidence of it. In related news, theories suggest there should be equal amounts of antimatter and matter in the universe, yet we're not able to detect any unless we create it ourselves. Now a CERN experiment takes us one step closer to discovering where all the antimatter went.http://phys.org/news/2014-06-week-planet-workload-robot-limbs.html
Other Mon, 09 Jun 2014 08:49:50 EDTnews321522556Astronomers identify signature of Earth-eating stars(Phys.org) —Some Sun-like stars are 'Earth-eaters.' During their development they ingest large amounts of the rocky material from which 'terrestrial' planets like Earth, Mars and Venus are made.http://phys.org/news/2014-05-astronomers-signature-earth-eating-stars.html
Astronomy Tue, 20 May 2014 04:40:12 EDTnews319779412Galactic archaeologists uncover new insights into the formation of the earliest stars and galaxiesA team of Galactic archaeologists has uncovered new insights into the formation of the earliest stars and galaxies by observing the chemical signatures of ancient 'fossil' stars present in the outer and inner halos encircling the Milky Way.http://phys.org/news/2014-05-galactic-archaeologists-uncover-insights-formation.html
Astronomy Mon, 05 May 2014 07:47:04 EDTnews318494787New discovery helps solve mystery source of African lavaFloods of molten lava may sound like the stuff of apocalyptic theorists, but history is littered with evidence of such past events where vast lava outpourings originating deep in the Earth accompany the breakup of continents.http://phys.org/news/2014-04-discovery-mystery-source-african-lava.html
Earth Sciences Wed, 23 Apr 2014 09:51:06 EDTnews317465454Space sunflower may help snap pictures of planetsA spacecraft that looks like a giant sunflower might one day be used to acquire images of Earth-like rocky planets around nearby stars. The prototype deployable structure, called a starshade, is being developed by NASA's Jet Propulsion Laboratory in Pasadena, Calif.http://phys.org/news/2014-03-space-sunflower-snap-pictures-planets.html
Astronomy Fri, 21 Mar 2014 10:02:44 EDTnews314614927New forensic technique for identifying cloth fibersCrime-scene investigators may soon have a new tool to help them catch evildoers. Researchers have demonstrated the proof-of-principle for a new forensic technique to identify individual fibers of cloth, which often all look alike.http://phys.org/news/2013-10-forensic-technique-fibers.html
Analytical Chemistry Tue, 29 Oct 2013 13:33:10 EDTnews302272363The chemistry behind the character of bourbon, scotch and ryeWhiskeys have long captivated the senses of connoisseurs, whether with smokiness and a whiff of vanilla or a spicy character with hints of caramel, and now, the emerging chemistry of "brown spirits" is proving that they have distinct chemical signatures to match the complex combinations of grains, barrels, aging and other factors that yield the liquid gold poured into each bottle.http://phys.org/news/2013-09-chemistry-character-bourbon-scotch-rye.html
Other Mon, 09 Sep 2013 14:30:03 EDTnews297944789Microelectronics: Automating cancer detectionMicroelectronic engineers in Singapore have developed and tested sensor technology that can detect and measure a chemical signature of bladder cancer. The light-based sensor could eventually be used for the early diagnosis and subsequent tracking of the progression and treatment of many different tumors, according to Yong Shin at the A*STAR Institute of Microelectronics, who led the research. After further testing of the technology, Shin and co-workers are planning to develop a lab-on-a-chip device incorporating the sensor that can process fluid samples within about five minutes.http://phys.org/news/2013-08-microelectronics-automating-cancer.html
Analytical Chemistry Wed, 14 Aug 2013 07:50:01 EDTnews295684384Research team solves Martian meteorite age puzzleBy directing energy beams at tiny crystals found in a Martian meteorite, a Western University-led team of geologists has proved that the most common group of meteorites from Mars is almost 4 billion years younger than many scientists had believed – resolving a long-standing puzzle in Martian science and painting a much clearer picture of the Red Planet's evolution that can now be compared to that of habitable Earth.http://phys.org/news/2013-07-team-martian-meteorite-age-puzzle.html
Space Exploration Wed, 24 Jul 2013 14:31:27 EDTnews293895074Space station ocean imager available to more scientistsThe International Space Station is expanding the use of its Hyperspectral Imager for the Coastal Ocean (HICO) instrument to more Earth scientists and environmental researchers.http://phys.org/news/2013-07-space-station-ocean-imager-scientists.html
Space Exploration Fri, 12 Jul 2013 07:26:04 EDTnews292832755Investigating exoplanet surfacesIn order to better understand the composition of rocky exoplanets, researchers have proposed a method to identify chemical signatures from surface materials. A better understanding of exoplanet surface compositions will help researchers determine the prevalence of Earth-like planets in our galaxy.http://phys.org/news/2013-05-exoplanet-surfaces.html
Astronomy Mon, 27 May 2013 11:20:01 EDTnews288870598Studying meteorites may reveal Mars' secrets of lifeIn an effort to determine if conditions were ever right on Mars to sustain life, a team of scientists, including a Michigan State University professor, has examined a meteorite that formed on the red planet more than a billion years ago.http://phys.org/news/2013-05-meteorites-reveal-mars-secrets-life.html
Space Exploration Wed, 01 May 2013 16:04:08 EDTnews286643043Herschel links Jupiter's water to comet impact(Phys.org) —ESA's Herschel space observatory has solved a long-standing mystery as to the origin of water in the upper atmosphere of Jupiter, finding conclusive evidence that it was delivered by the dramatic impact of comet Shoemaker-Levy 9 in July 1994.http://phys.org/news/2013-04-herschel-links-jupiter-comet-impact.html
Space Exploration Tue, 23 Apr 2013 09:43:23 EDTnews285928997Did diamonds begin on the ancient ocean floor?(Phys.org) —Geology professor Dan Schulze calls this singular gem from the remote Guaniamo region of Venezuela the "Picasso" diamond. The blue luminescent, high-resolution image of a diamond formed over a billion years ago reminds him of some paintings from Picasso's Blue Period. Like a cubist masterpiece, its striking irregular and anomalous features carry timeless secrets and yield new perspectives on life and the Earth's early history.http://phys.org/news/2013-04-diamonds-ancient-ocean-floor.html
Earth Sciences Thu, 18 Apr 2013 08:21:43 EDTnews285492097Forest organic runoff breaks down faster than agricultural, urban runoffDissolved organic matter in streams and rivers can be broken down by sunlight or bacteria, providing a fuel source for aquatic ecosystems and affecting carbon dioxide and carbon monoxide concentrations as the organic matter is mineralized. Researchers know that the amount of organic matter in streams fed by forest landscapes and those fed by watersheds affected by human activity, such as croplands, pasture, or urban environments, can differ greatly. What is less well known is how the organic matter from these various environments evolves as it flows downstream.http://phys.org/news/2013-04-forest-runoff-faster-agricultural-urban.html
Environment Mon, 15 Apr 2013 09:50:01 EDTnews285234664Suzaku 'post-mortem' yields insight into Kepler's supernova(Phys.org) —An exploding star observed in 1604 by the German astronomer Johannes Kepler held a greater fraction of heavy elements than the sun, according to an analysis of X-ray observations from the Japan-led Suzaku satellite. The findings will help astronomers better understand the diversity of type Ia supernovae, an important class of stellar explosion used in probing the distant universe.http://phys.org/news/2013-04-suzaku-post-mortem-yields-insight-kepler.html
Astronomy Mon, 08 Apr 2013 16:38:30 EDTnews284657904Rapid climate change and the role of the Southern OceanScientists from Cardiff University and the University of Barcelona have discovered new clues about past rapid climate change.http://phys.org/news/2013-04-rapid-climate-role-southern-ocean.html
Earth Sciences Mon, 08 Apr 2013 12:37:37 EDTnews284643451Chemical signature of global El Nino events opens window to reconstructing paleoclimate cyclesParticles from the upper atmosphere trapped in a deep pile of Antarctic snow hold clear chemical traces of global meteorological events, a team from the University of California, San Diego and a colleague from France have found.http://phys.org/news/2013-02-chemical-signature-global-el-nino.html
Earth Sciences Mon, 25 Feb 2013 15:00:25 EDTnews281009381Chemistry trick kills climate controversyVolcanoes are well known for cooling the climate. But just how much and when has been a bone of contention among historians, glaciologists and archeologists. Now a team of atmosphere chemists, from the Tokyo Institute of Technology and the University of Copenhagen, has come up with a way to say for sure which historic episodes of global cooling were caused by volcanic eruptions.http://phys.org/news/2013-02-chemistry-climate-controversy.html
Earth Sciences Mon, 11 Feb 2013 15:00:09 EDTnews279805094Shimmering water reveals cold volcanic vent in Antarctic watersThe location of an underwater volcanic vent, marked by a low-lying plume of shimmering water, has been revealed by scientists at the National Oceanography Centre, Southampton.http://phys.org/news/2013-02-shimmering-reveals-cold-volcanic-vent.html
Earth Sciences Wed, 06 Feb 2013 11:35:33 EDTnews279372919Nothing fishy about swimming with same-sized matesHave you ever wondered why, and how, shoals of fish are comprised of fish of the same size? According to new research by Ashley Ward, from the University of Sydney in Australia, and Suzanne Currie, from Mount Allison University in Canada, fish can use a variety of different sensory cues to locate shoal-mates, but they are able to use chemical cues to find other fish of the same size as themselves. Using these cues, they can form a group with strength in numbers. The work is published online in Springer's journal, Behavioral Ecology and Sociobiology.http://phys.org/news/2013-02-fishy-same-sized.html
Plants & Animals Wed, 06 Feb 2013 09:50:54 EDTnews279366648Advances in field of Raman spectroscopy pave way for new deep non-invasive medical diagnosis methodsRaman spectroscopy has recently undergone major advances in the area of deep non-invasive characterisation of biological tissues. The progress stems from the develop­ment of spatially offset Raman spectroscopy (SORS) and renaissance of transmission Raman spectroscopy permitting the assessment of diffusely scattering samples at depths several orders of magnitude deeper than possible with conventional Raman spectroscopy.http://phys.org/news/2013-01-advances-field-raman-spectroscopy-pave.html
Optics & Photonics Fri, 18 Jan 2013 06:31:27 EDTnews277713049Martian rock from Sahara desert unlike othersScientists are abuzz about a coal-colored rock from Mars that landed in the Sahara desert: A yearlong analysis revealed it's quite different from other Martian meteorites. Not only is it older than most, it also contains more water. The baseball-size meteorite, estimated to be 2 billion years old, is strikingly similar to the volcanic rocks examined by the NASA rovers Spirit and Opportunity on the Martian surface.http://phys.org/news/2013-01-baseball-size-martian-recovered-sahara.html
Space Exploration Thu, 03 Jan 2013 15:07:09 EDTnews276448005New turtle tracking technique may aid efforts to save loggerheadThe old adage "you are what you eat" is helping scientists better understand the threatened loggerhead turtle, which is the primary nester on Central Florida's beaches.http://phys.org/news/2012-09-turtle-tracking-technique-aid-efforts.html
Ecology Fri, 21 Sep 2012 10:00:01 EDTnews267439226Forest edge reveals habitat loss in Madagascar(Phys.org)—The dry forests of Madagascar can use all the help they can get. New research suggests a promising tool for understanding and conserving these threatened environments.http://phys.org/news/2012-09-forest-edge-reveals-habitat-loss.html
Environment Wed, 05 Sep 2012 09:00:01 EDTnews266053090Microbes help hyenas communicate via scent(Phys.org)—Bacteria in hyenas' scent glands may be the key controllers of communication.http://phys.org/news/2012-08-microbes-hyenas-scent.html
Plants & Animals Thu, 30 Aug 2012 14:34:59 EDTnews265556074Curiosity in it for the long haulIn recent days, Curiosity has accomplished a number of firsts, including the first use of its laser to zap a nearby rock and its first short drive. Many more such firsts lie ahead. But as the rover prepares to head off on a journey of discovery across previously unexplored territory, it seems like a good time to pause and remind ourselves just what it was that Curiosity was sent to Mars to do. http://phys.org/news/2012-08-curiosity-haul.html
Space Exploration Tue, 28 Aug 2012 08:10:02 EDTnews265358411